Ok, I just bought a new mouse (Microsoft Laser Mouse 6000) And for some reason call of duty 2 wont read the middle mouse button(Throw a Grenade). I can bind the button to something like 'G' for example but then I can't 'Hold' the grenade in my hand before releasing it, so i can only click it. I'm using 'steer mouse' to bind the keys. Can anyone help me??!